Brake



NOV. 14, 1933. 'J J sc LL 1,935,334

BRAKE Filed March 28, 1932 INVENTOR. JOHN J. SCHILLER A TTORNE Y.

A Patented Nov. 14, 1933 BRAKE John J. Schiller, Cicero, Ill., assignorto Bendix Aviation Corporation, South Bend, Ind., a corporation ofDelaware Application March 28, 1932. Serial No. 601,694

2 Claims.

This invention relates to brakes for automotive vehicles and moreparticularly to arrangements by which such brakes may be operated.

One of the objects of the invention is to secure equalization of thebraking forces applied to each brake of the front pair and to each brakeof the rear pair.

A further object of the invention is to secure equalization between eachpair of brakes on each side of the vehicle.

A further object of the invention is to provide a hookup arrangement inwhich a single adjustment is effective to adjust the brakes for liningwear, etc.

Among the novel features of the illustrative embodiment of my inventionare two pulleys mounted on laterally swinging links one on each side ofthe vehicle; cables connected to these pulleys and to the rear brakes;another cable extending over these pulleys and thence forward to thefront brakes on each side; and means for tensioning the last named cableintermediate the pulleys, comprising a third pulley mounted on a thirdlink.

Further objects and features of the invention will be apparent after areadingof the subjoined specification: and claims and after aconsideration of the accompanying drawing, in which:

Figure 1 is a diagrammatic plan view of an automobile equipped with ahookup constructed according to my invention;

Figure 2 is an enlarged sectional view taken substantially on the line22 of Figure 1; and

Figure 3 is an enlarged sectional view taken substantially on the line3-3 of Figure 1.

Referring in detail to the drawing there may be seen a vehicle providedwith a chassis formed by side frames 11 and 12 and by a connecting crossframe member 13. The chassis is supported by means of a front axle 14and a rear axle 15, the former resting upon front wheels 16 and 1'7, andthe latter resting upon rear wheels 18 and 19. The wheels 16, 17, 18,and 19 are equipped with brakes 21, 22, 23, and 24 respectively.

Means are provided for operating the brakes. Mounted at a suitable placeupon the vehicle is a pedal 25 connected by a, tension member 26 with ahorizontally swinging link 2'7. The link 27 is pivotally mounted as at28 upon the side frame 12 of the vehicle and carries at its opposite enda pulley 29. Privotally mounted as at 31 on the cross member 13 adjacentto one side of the vehicle is another horizontally swinging link 32 andpivotally mounted as at 33 on said cross member 13 adjacent to the otherside of the vehicle is a third horizontally swinging link 34. The link32 halfway between the pivot 31 and its opposite end carries a pulley 35and the link 34 halfway between its pivot 33 and the opposite (Cl.ll88204) end carries a pulley 36. Passing around the pulleys 35 and 36rearwardly of said pulleys and passing around the pulley 29 forwardly ofthe pulley 29 is a cable 3'! which has one end connected with the brake21 and the opposite end connected with the brake 22. Connected to theoutside end of link 32 (i. e. the end opposite the pivot 31) is a cable38 which is connected with the brake 23 and connected to the outside end(i. e. the end opposite the pivot 33) of the link 34 is a cable 39having its opposite end connected with the brake 24.

It is believed that the operation of the above described braking systemwill be clear from the above description. Depression of the pedal 25moves the pulley 29 and tensions the cable 3'7.-

Therefore, force is exerted equally on thebrakes 21 and 22. Inasmuch asthe force exerted on the pulley 35 is twice that exerted through thecable 37 on the brake 21, and inasmuch as the pulley 35 is located onehalf of the distance from pivot to the connection with the cable 38, theforce exerted on the brake 23 equals the force exerted on the brake 21.Similarly the force exerted on the brake 24 equals the force exerted onthe brake 22.

It is to be understood that the above described embodiment of myinvention is for the purpose of illustration only and various changesmay be made therein without departing from the spirit and scope of theinvention.

I claim:

1. A braking system for an automotive vehicle comprising a plurality ofbrakes, a pair of horizontally swinging links pivoted upon the frame ofsaid vehicle, a pulley mounted on each of said links at a pointsubstantially one-half of the distance between the pivot point and theopposite end of the link, a cable connected to each of said links atsaid opposite end and to one of said brakes, and a cable passing oversaid pulleys and connected to others of said brakes.

2. A braking system for an automotive vehicle having a chassis,comprising a plurality of front brakes, a plurality of rear brakes, apair of links pivotally mounted adjacent the sides of said chassis andin transverse alignment, a pair of pulleys mounted on said linksrespectively, a third link pivotally mounted on said chassis, a thirdpulley mounted on said third link in a position substantially central ofsaid chassis but in advance of the transverse line passing through saidother pulleys, a cable connected to said forward brakes and passingrearwardly of said aligned pulleys and forwardly of said central pulley,cables connected to said side pulleys and operatively associated withsaid rear brakes, and means for displacing said central pulley forward.Q

JOHN J. SCHILLER.

